package com.poi.jms;

import javax.jms.Connection;   
import javax.jms.DeliveryMode;   
import javax.jms.Destination;   
import javax.jms.JMSException;   
import javax.jms.MessageProducer;   
import javax.jms.Session;   
import javax.jms.TextMessage;   
  
import org.apache.activemq.ActiveMQConnection;   
import org.apache.activemq.ActiveMQConnectionFactory;   
  
public class ProducerTool {   
  
    private String user = ActiveMQConnection.DEFAULT_USER;   
  
    private String password = ActiveMQConnection.DEFAULT_PASSWORD;   
  
    private String url = ActiveMQConnection.DEFAULT_BROKER_URL;   
  
    private String subject = "TOOL.DEFAULT";   
  
    private Destination destination = null; //Topic,Queue,   
  
    private Connection connection = null;   
  
    private Session session = null;   
  
    private MessageProducer producer = null;   
  
    // 初始化   
    private void initialize() throws JMSException, Exception {   
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(   
                user, password, url);   
        connection = connectionFactory.createConnection();   
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);   
        destination = session.createQueue(subject);
        producer = session.createProducer(destination);   
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);   
    }   
  
    // 发送消息   
    public void produceMessage(String message) throws JMSException, Exception {   
        initialize();   
        TextMessage msg = session.createTextMessage(message);   
        connection.start();   
        System.out.println("Producer:->Sending message: " + message);   
        producer.send(msg);   
        System.out.println("Producer:->Message sent complete!");   
    }   
  
    // 关闭连接   
    public void close() throws JMSException {   
        System.out.println("Producer:->Closing connection");   
        if (producer != null)   
            producer.close();   
        if (session != null)   
            session.close();   
        if (connection != null)   
            connection.close();   
    }   
}    